the uk is joining the united states in saying syria is now preparing to use chemical weapons. meanwhile, syrian rebels chose a former officer to lead their unified group. the new commander had defected from the syrian military. also today, the syrian military dropped rockets on to damascus. under rebel control. >>> the los angeles police department looking for new clues in the 15-year-old murder mystery of rapper notorious b.i.g. they're looking into biggie's death again. yesterday police released his autopsy for the first time, hoping to generate some new tips. but family says they want more information. the rapper died in a 1997 drive-by shooting in los angeles. >>> and the second winner of last month's powerball jackpot has come forward, but is not showing his face. arizona lottery official says the winner claimed his prize, but decided to remain anonymous, which is allowed under state law there. the officials say the man is in his 30s and will walk away with a cool $192 million before uncle sam comes a knocking. >>> turning back to domestic politics now. pot smokers in was